Technical note: A novel 3D scan-based optical method for analyzing lines drawn at different pen pressure

Faruk Asicioglu, Aysegul Sen Yilmaz*, Jan de Kinder, Ilgim Pekacar, Ali Gelir

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

Pen pressure is one of the important elements of handwriting and questioned document analysis which is also crucial to recognize forgery. In this paper, we present a new, non-contact, non-destructive, and relatively inexpensive technique to measure the width of the grooves made by the writing. Results demonstrate a clear difference in measured groove widths for varying pen pressure. The effect of passing a written or signed paper in different types of printers has also been studied. A clear decrease of the groove depth was noted when passing the document through a laser printer. An ink jet printer only resulted in a small decrease of the groove depth, while no effect could be detected from a dot matrix printer.

Original languageEnglish
Article number111388
JournalForensic Science International
Volume338
DOIs
Publication statusPublished - Sept 2022

Bibliographical note

Publisher Copyright:
© 2022 Elsevier B.V.

Funding

This work was supported by the Grant No TSA-2018-32531 from the Scientific Research Projects of Istanbul University-Cerrahpasa , Istanbul, Turkey.

FundersFunder number
Istanbul Üniversitesi-Cerrahpasa

    Keywords

    • 3D measurements
    • Documents
    • Forensic science
    • Handwriting
    • Pen pressure
    • Printers
    • Profile measurements

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